@ VMatas

Now I understand. Well I think this is not good. If after flashing with cure it should not freeze on Loading maps if the problem is coming from problematic files in the memory. But if the problem is in the flash memory this "cure" won't help. This simple trick only helps if the problem is coming from problematic files. Strange if it is still freezing on Loading Maps it shouldn't connect to PC and display PC icon.

Sometimes older firmwares help. For example you can try 2.50. I have posted such in gpspassion. Just google "Service firmware for 37xx" and you will find it. But I doubt it will help. The problem seems of other type.

I know there is much more advance ways of repairing memory problems but I know only one person that could do it. But I don't think it's worth contacting with him. Better stop tormenting your unit and contact Garmin Product support.